Well taking a sensible approach I'd probably say.
Zebra's, Horses, Camels, Lamas, Donkeys and Mules probably have the same ancestor.
Giraffes and Horses might be possibly related.
https://www.google.com/search?um=1&...urce=og&sa=N&tab=wi&ei=dUT3UZOPO4SWiQLopYHYBQ
Wolfs, Dogs and Coyotes probably have the same ancestor.
Some Breeds of Ape and Monkey can crossbreed.
Antelope and Deer can crossbreed.
There is probably a lot more that I just don't know about but it's safe to say that the biblical 'Kinds' of each animal covers a fairly wide umbrella.